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| author | Bob Wilson <bob.wilson@apple.com> | 2010-08-27 23:18:17 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2010-08-27 23:18:17 +0000 |
| commit | d4bfd54ec2947e73ab152c3c548e4dd4beb700ba (patch) | |
| tree | d4f7a8392f6a8887699db0d8674914cd21d45782 /test/CodeGen/ARM/vst3.ll | |
| parent | 11493aa47114c1992a195c3b9f9902cff11d1542 (diff) | |
| download | llvm-d4bfd54ec2947e73ab152c3c548e4dd4beb700ba.tar.gz llvm-d4bfd54ec2947e73ab152c3c548e4dd4beb700ba.tar.bz2 llvm-d4bfd54ec2947e73ab152c3c548e4dd4beb700ba.tar.xz | |
Change ARM VFP VLDM/VSTM instructions to use addressing mode #4, just like
all the other LDM/STM instructions. This fixes asm printer crashes when
compiling with -O0. I've changed one of the NEON tests (vst3.ll) to run
with -O0 to check this in the future.
Prior to this change VLDM/VSTM used addressing mode #5, but not really.
The offset field was used to hold a count of the number of registers being
loaded or stored, and the AM5 opcode field was expanded to specify the IA
or DB mode, instead of the standard ADD/SUB specifier. Much of the backend
was not aware of these special cases. The crashes occured when rewriting
a frameindex caused the AM5 offset field to be changed so that it did not
have a valid submode. I don't know exactly what changed to expose this now.
Maybe we've never done much with -O0 and NEON. Regardless, there's no longer
any reason to keep a count of the VLDM/VSTM registers, so we can use
addressing mode #4 and clean things up in a lot of places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112322 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/ARM/vst3.ll')
| -rw-r--r-- | test/CodeGen/ARM/vst3.ll | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/test/CodeGen/ARM/vst3.ll b/test/CodeGen/ARM/vst3.ll index 27ea601326..1feaed5a10 100644 --- a/test/CodeGen/ARM/vst3.ll +++ b/test/CodeGen/ARM/vst3.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -march=arm -mattr=+neon | FileCheck %s +; RUN: llc < %s -march=arm -mattr=+neon -O0 | FileCheck %s define void @vst3i8(i8* %A, <8 x i8>* %B) nounwind { ;CHECK: vst3i8: |